Mity CPU Platforms » MityDSP-L138 (ARM9 Based Platforms)

01/30/2015

10:35 PM PCB Development: RE: MityARM-1808F SATA connection problem

The SW developer told me the kernel version is 2.6.34
Does that affect the quality of link? Jun Mo

01/23/2015

03:21 AM Software Development: RE: Write to SharedMem from DSP and read it from ARM

Hi mike
your are rigth. I tried it before the
map= (int *)(mmap(0,MAPPED_SIZE,PROT_READ|PROT_WRITE,MAP_SHARED... stefan nielsen

01/22/2015

07:32 AM Software Development: RE: Write to SharedMem from DSP and read it from ARM

No you don't need ot use SetSharedMemCfg() or SetPoolCfg() if you are not using the tcDspInbound and tcDspOutbound me... Michael Williamson

03:57 AM Software Development: RE: Write to SharedMem from DSP and read it from ARM

Hi
do i need to use
int tcDspApp::SetSharedMemCfg(tsSharedMemCfg* pConfig)
or
int tcDspApp::SetPoolC... stefan nielsen

01:59 AM Software Development: RE: Write to SharedMem from DSP and read it from ARM

Hi thanks for the help, I still got some problems with reading on the ARM.
ARM code:... stefan nielsen

01/20/2015

09:31 AM Software Development: RE: Write to SharedMem from DSP and read it from ARM

You may find this post helpful for transmitting non-string data using dsplink. https://support.criticallink.com/redmi... Jonathan Cormier

09:18 AM Software Development: RE: Write to SharedMem from DSP and read it from ARM

DSP code is OK, though if you have the caches enabled for the regions of SRAM or RAM you may need to add a cache writ... Michael Williamson

09:05 AM Software Development: RE: Write to SharedMem from DSP and read it from ARM

Hi thanks for the quick reply. I found some stuff of how to do it on the ARM side, following the example you pointed ... stefan nielsen

07:33 AM Software Development: RE: Write to SharedMem from DSP and read it from ARM

The linux OS uses virtual memory addresses. You can't access RAM by physical address in the normal case.
You need... Michael Williamson

03:25 AM Software Development: Write to SharedMem from DSP and read it from ARM

Hi im trying to write to some shared memory from the DSP and read it back from the ARM. Ive expanded the HelloWorldDS... stefan nielsen

01/19/2015

07:08 AM PCB Development: RE: MityARM-1808F SATA connection problem

What version of the kernel are you using? Michael Williamson

01/18/2015

11:30 AM PCB Development: RE: MityARM-1808F SATA connection problem

From the kernel boot message, occasionally it failed to link to 3G speed, it linked up to 1.5G, but most of the time ... Jun Mo

01/16/2015

07:24 AM PCB Development: RE: MityARM-1808F SATA connection problem

I am fairly certain that the lengths on the module for the SATA lines are matched. I will check with our PCB designe... Michael Williamson